Senior Backend Engineer (Java)

Important Warning for Job Applicants: Beware of Scammers Impersonating Smadex

We've recently detected fraudulent activities involving scammers posting as Smadex and preying on job seekers. Your safety is our top priority, and we're dedicated to ensuring your job search is secure and scam-free. Smadex will never request sensitive personal or financial information or any payments during any job application stages. If you have any doubts about a job opportunity claiming to be from Smadex, please reach out to our official HR department to verify the job offer.

Here are main warning signs to heed when considering a job opportunity, not just with Smadex but with any organisation:

• Equipment Purchase Requirement: Smadex never requires you to buy startup equipment or materials for employment. If a job offer mandates such purchases, it's likely a scam.
• Non-Refundable Registration Fee: Smadex never charges job applicants registration fees or upfront costs. If asked to pay fees for an interview or position, it's a strong scam indicator.
• Discrepancies in Job Postings: Authentic Smadex job openings are listed on our official website and reputable job boards. If a posting only appears on job boards and not our site, exercise caution and verify its legitimacy.
• Poorly Written Communications: Scammers often use badly written emails and ads filled with grammatical errors and vague job details. If you receive unprofessional or unclear communications, it may be a warning sign.

If you like challenges and enjoy owning your code from design to production, this position is meant for you. Keep reading!

Smadex is a cutting-edge ad-tech company: we process more than 2.5 million ad requests per second, replying under 100ms. Every day we generate several TBs of data that need to be processed, analyzed and aggregated, so our real-time components get smarter every day. We need you to help us keep our platform in motion!

This position is hybrid in Barcelona.

WHAT ARE WE LOOKING FOR?

A Senior Backend Engineer (Java) with hands-on experience in developing complex solutions to join our tech team.

Requirements and qualifications:

• 5 years of software development experience in one or more programming languages such as Java and Node.js.
• Solid experience with Key-Value stores and in-memory databases (e.g. Redis, Memcached).
• Strong fundamentals of modern CI/CD frameworks and testing tools.
• Expertise in Linux, Git, Docker & Docker-Compose and AWS Cloud.
• Excellent communication skills in English both written and spoken.
• Software development experience in Java / Spring Boot.
• Design and implementation of low-latency, high-throughput platforms.

Please note that we do NOT provide VISA sponsorship. Candidates without a legal permit to work in Spain won't be considered.

What will you do at Smadex?

• Be an advocate of our “You build it, you run it” philosophy: you will own your code from design to production; testing, deploying and monitoring. You will learn from every step in the software development process.
• Develop and maintain a high-throughput low-latency platform. You have not lived until you fix an error happening 1 million times per second.
• Improve and optimize real-time components: every millisecond counts.
• Participate in code reviews, contribute to technical and architectural decisions, collaborate in a fast-paced environment where every opinion counts.

Our tech stack is 100% based on AWS, running thousands of instances and containers in 7 different regions. Technologies: Java, NodeJS, Python, Redis, AWS, Nginx, HAProxy, Apache Druid, MySQL, Memcache, Netflix Hollow, and much more.

If you become a member of our team, you will get the chance to:

• Have a real impact on one of the hottest ad-tech in Barcelona and Europe.
• Be part of an agile team with a strong focus on innovation and technology, to continue improving your knowledge in the field.
• Work in a multicultural, young & talented environment with peeps from more than 28 different nationalities!
• Ticket restaurant - monthly allowance.
• Daily fresh fruits & snacks.
• TGIF’s monthly activities, team-building events, and work anniversary celebrations!

If you want to know more about us visit our website Smadex.com, and for a sneak peek of the cool stuff we build, check this video out.